Karate, BJJ or Muay Thai for petite woman?

I'm 5ft, typical short, petite woman. Not that great with physical strength either. I do hit the gym regularly to get in shape and become stronger but that's that.

I'm considering getting into martial arts to learn how to fight to protect myself. Ik given my physique, I'll be at a disadvantage no matter what but still, I want to be able to protect myself and become strong physically (and mentally too).

So which one should I take up? It'll be my first time taking up martial arts so idk which one will be right for me.

Please don't suggest me guns lol.